public class UserLoginResponseDto
{
    public Guid UserId { get; set; }
    public string Token { get; set; } = string.Empty;
    public string Username { get; set; } = string.Empty;
    public string? Nickname { get; set; }
    public string? Email { get; set; }
    public int Status { get; set; }
    // 可扩展更多用户信息
} 